/[meta-cvs]/meta-cvs/F-B3689DBB46386B16F4B2331934B69223
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Revision 1.95 - (hide annotations)
Sun Sep 1 16:58:44 2002 UTC (11 years, 7 months ago) by kaz
Branch: MAIN
Changes since 1.94: +5 -0 lines
* code/grab.lisp (mcvs-grab): Iterate over stable symlinks,
and incorporate changed targets into the mapping. In other
words, notice and incorporate retargetted symlinks.
1 kaz 1.3 Release Notes for Meta-CVS
2 kaz 1.1
3 kaz 1.95 Release 0.??, 2002-09-??:
4    
5     The grab command notices edited symlinks and incorporates
6     the changes.
7    
8 kaz 1.94 Release 0.22, 2002-08-31:
9 kaz 1.93
10     Symbolic links are now versioned objects. The format of the MAP file
11     changes to accomodate this; the new Meta-CVS will read old MAP
12     files; when it writes it will write the new format. Old Meta-CVS won't
13     read the new format.
14    
15     When a new module is created from an existing file tree, symbolic
16     links will be recognized and added. The add command will also add
17     symbolic links. Symbolic links can be renamed and moved; this does
18     nothing with their contents. They can point outside of the sandbox
19     using relative or absolute paths.
20    
21 kaz 1.94 TODO:
22    
23 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
24     retarget them; retargetting a link can be done manually by editing MCVS/MAP
25     and updating. Retargetting a link using the ln -s command, won't
26 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
27    
28     The grab command does not yet compute symbolic link moves; a moved symbolic
29     link is treated as a remove and add. This will be easy to fix.
30    
31     The remap command ignores symlinks.
32 kaz 1.93
33 kaz 1.92 Release 0.21, 2002-08-04:
34 kaz 1.88
35 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
36     argument, but using the -r command option. If no revision is specified with
37     -r, then a -A must be specified to make the grab go to the main trunk. This
38     is a safety feature, since grabbing foreign snapshots to the trunk is almost
39     always wrong, though it could be useful during backup recovery, or for fixing
40     mistakes.
41    
42 kaz 1.91 The way operating system functions are targetted has changed. Instead of
43     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
44     has its own module for calling foreign functions. This module is portable;
45     it does not depend on the layout of glibc data structures. So Meta-CVS
46     is in theory now portable to other Unixes (provided they have /dev/urandom).
47    
48 kaz 1.87 Release 0.20, 2002-07-27:
49 kaz 1.86
50     The commit command does a true global commit when given no file or directory
51     parameters, and not given the --metaonly option. This means commiting all
52     changes in the MCVS directory, even if they are in F-files that are not
53     currently mapped.
54    
55 kaz 1.85 Release 0.19, 2002-07-16:
56 kaz 1.81
57     When moving multiple files or directories to a subdirectory, a
58     restart is now provided to skip over bad ones and continue.
59    
60 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
61     files. There are no moves to deduce in that case.
62    
63 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
64     rather than at the abstract root of the module.
65    
66 kaz 1.83 Some other algorithmic improvements made.
67 kaz 1.82
68     The first few sections of a user guide have been written.
69    
70 kaz 1.80 Release 0.18, 2002-07-07:
71 kaz 1.77
72 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
73     subdirectory of the project. Specifying a subdirectory results in a ``partial
74     sandbox'', whose root directory is the specified subdirectory of the larger
75     project. The rest of the project is ``invisible'' to that sandbox. A
76     subdirectory argument can also be given to mcvs grab, which will cause it to
77     integrate the new source tree against a subtree of the Meta-CVS project
78 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
79     that case you get an empty sandbox. Adding files to this sandbox will cause
80     the tree to exist in the project.
81 kaz 1.78
82 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
83     wrongly treating them as removes and adds.
84    
85 kaz 1.76 Release 0.17, 2002-07-02:
86 kaz 1.71
87     The create command no longer takes a vendor branch. Instead the symbol
88     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
89    
90 kaz 1.72 The grab command no longer does useless synchronization on files that
91     are about to be deleted.
92    
93 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
94     that have no mapping.
95    
96     New restore command; re-enters deleted files into the mapping, under
97     the ``lost+found'' directory, using their F- names as sandbox names.
98 kaz 1.73
99 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
100     working copy, it must not delete that working copy's MCVS sub directory.
101    
102 kaz 1.70 Release 0.16, 2002-06-29:
103 kaz 1.67
104     Added new heuristics to grab command. Paths are analyzed to determine
105     move distance. Greater distances reduce the confidence in a move.
106     These rules help sort out grabs in a project where similar or
107     duplicate files are subject to parallel moves, the ambiguity being
108 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
109     now. Common words (those that appear in many files) are ignored when
110     comparing files.
111 kaz 1.67
112 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
113     up a little bit. Most reporting commands like log or diff no longer
114     operate on meta files by default; they must be explicitly told to do
115     so with --meta or --metaonly. Only the commit command implicitly includes
116     metafiles by default, and so if this is not wanted, --nometa must be
117     selected. The update command remains special; if it is given file
118     arguments, it does not include meta files. If given no arguments, it
119     does a global CVS up across the entire project.
120    
121 kaz 1.66 Release 0.15, 2002-06-25:
122 kaz 1.61
123 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
124     paths; the result is a noticeable performance improvement in some commands
125     that process large numbers of files.
126 kaz 1.61
127 kaz 1.62 Renamed ``import'' command to ``create''.
128    
129 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
130     broken :postorder support in directory walking function.
131 kaz 1.63
132 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
133     the checkout was directed to an existing directory.
134    
135 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
136 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
137     It determines what files have been added and removed in the snapshot, and
138     tries to compute which removes and adds are actually moves. This is done by
139     analyzing the actual contents of the files according to a crude algorithm to
140     do fuzzy comparisons, so that even files which were modified as well as moved
141     are discovered.
142 kaz 1.64
143 kaz 1.60 Release 0.14, 2002-06-21:
144 kaz 1.59
145     Bugfix: mcvs add was broken for files that have no suffix, causing
146 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
147     handling was added.
148 kaz 1.59
149 kaz 1.58 Release 0.13, 2002-06-06:
150 kaz 1.55
151     Sandbox synchronization now handles the case of two files having
152     the same timestamp. An error is signaled, with interactive resolution
153     to synchronize either way, or do nothing.
154    
155 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
156     is now a continuable error.
157    
158     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
159     whose suffix is one of the ones cvs ignores by default.
160    
161 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
162     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
163     moves and deletions, and reconstruct the mapping accordingly; that is,
164     it remaps the new structure. This command uses inode numbers to identify
165     files; if a file is copied and then the original is deleted, that won't
166     be recognized as a move.
167    
168 kaz 1.53 Release 0.12, 2002-04-18:
169 kaz 1.51
170     Bugfix: remove was broken in 0.10, fixed now.
171    
172 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
173     ``. not known to Meta-CVS''.
174    
175 kaz 1.52 The checkout operation now can now populate an existing directory, including
176     the current working directory (mcvs co -d . modulename). Of course, the
177     target directory cannot be an existing Meta-CVS sandbox.
178     This is a useful feature, which allows sandboxes to blend with an
179     existing directory structure.
180    
181     Checkout now uses the same function for generating the sandbox
182     structure as does update. This is now necessary, because local files
183     can be clobbered by the checkout.
184    
185 kaz 1.50 Release 0.11, 2002-04-12:
186 kaz 1.46
187     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
188     from CVS/Root and passes it via -d. This is necessary because rtag does not
189     look at a local CVS subdirectory for this information, only the
190     -d option or the environment variable.
191    
192 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
193     what sticky tag the sandbox is updated to.
194    
195     Command for switching branches added (switch or sw).
196    
197     Merge detects that working copy is on non-branch tag and bails.
198 kaz 1.47
199 kaz 1.49 Absolute paths can now be specified as file arguments. These are
200     based from the root directory of the sandbox, not the actual filesystem root
201     directory.
202    
203 kaz 1.45 Release 0.10, 2002-04-03:
204 kaz 1.44
205     Automatic merging implemented. Branch is created using branch command,
206     and merging from another branch is done using simple merge command.
207     Meta-CVS maintains the tags to keep track of what has been merged
208     from what branch to what branch.
209 kaz 1.40
210     Bugfix: checkout -d foo bar was complaining about directory bar already
211     existing, even though it should only care about foo.
212    
213 kaz 1.41 The remove command now requires explicit -R option to recursively remove
214 kaz 1.42 a directory. It has more detailed error reporting.
215 kaz 1.41
216 kaz 1.43 The move command has better error reporting.
217    
218 kaz 1.39 Release 0.9, 2002-03-14:
219 kaz 1.37
220     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
221     (unless --nometa is specified, of course).
222 kaz 1.38
223     The mcvs filt command takes -r <revision> or -D <date> parameters.
224     This means to retrieve the MAP file as of the specified revision or
225     date and use that mapping to perform the filtering translation,
226     rather than using MAP-LOCAL.
227 kaz 1.39
228     The mcvs update command takes filename arguments now and also
229     supports the -p option.
230 kaz 1.37
231 kaz 1.36 Release 0.8, 2002-03-13:
232 kaz 1.28
233 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
234     listed as :ignore in MCVS/TYPES.
235    
236 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
237     as a directory (if it does not already exist and is a non-directory).
238    
239 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
240     directory, which is normally the same as the module name.
241    
242 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
243    
244 kaz 1.33 New global options --error-continue and --error-terminate to disable
245     interactive error handling in two different ways.
246    
247 kaz 1.32 Log level of many messages has changed; many messages have been
248     relegated to debug level.
249    
250 kaz 1.35 The import command now creates a .cvsignore file containing the name
251     MAP-LOCAL.
252    
253 kaz 1.24 Release 0.7, 2002-03-09:
254    
255 kaz 1.27 The import command collects a list of the file suffixes and brings up
256     a text editor to allow the user to edit their CVS keyword expansion
257     behavior. This information is kept in a new metafile called TYPES. The
258     add command also updates TYPES; it identifies any suffixes which are new,
259     and brings up an editor. The F- files now carry suffixes, which
260     simplifies interfacing with CVS, and also allows cvswrappers to work.
261    
262     Recursive add works (mcvs add -R ...).
263    
264     New command line option --nometa allows metafiles to be excluded from
265     diff, tag, and other commands; without the option they are inserted
266     into the list of files to be processed.
267 kaz 1.25
268 kaz 1.27 The commit option now takes an optional list of files or directories,
269     just like tag, diff, and others.
270 kaz 1.26
271 kaz 1.23 Release 0.6, 2002-02-16:
272 kaz 1.19
273 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
274 kaz 1.21
275 kaz 1.27 User can interactively select whether to clobber local files or leave
276     everything alone. Effects on the mapping file of a mcvs move are undone,
277     if the restructuring is rolled back, or raises a condition that leads
278     to termination.
279    
280     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
281     during import, and specifies the CVS keyword expansion mode for files
282     having given suffixes, and can also tell Meta-CVS to ignore certain files
283     when importing or adding.
284 kaz 1.22
285 kaz 1.18 Release 0.5, 2002-02-10:
286 kaz 1.14
287 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
288     sanity checks to prevent adds and moves from accidentally clobbering
289     local files. A rearranging gone bad can be rolled back. Effects
290     of a failed mcvs add can also be rolled back.
291 kaz 1.14
292 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
293 kaz 1.15
294 kaz 1.13 Release 0.4, 2002-02-04:
295 kaz 1.10
296 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
297     which ensures that multiple command lines are generated if necessary to
298     avoid surpassing the operating system limit on argument and environment
299     vector size. This is important when someone wants to diff or stat a
300     subdirectory, which requires Meta-CVS to pick out the individual files
301     at the CVS level.
302    
303     The tag, log, status and annotate commands are now available.
304    
305     The MAP file is sorted on F- file names now, not path names. This
306     improves merging, since files do not move within the file when
307     they are renamed.
308 kaz 1.12
309 kaz 1.5 Release 0.3, 2002-02-02:
310    
311 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
312     exit. The program properly indicates failed termination when it exits
313     due to an error condition.
314    
315     Corrections are made in the command line option processing. If z is an
316     option that takes an argument, and the argument is -zx, then x is
317     treated as the argument to the option. Long options arguments are
318     recognized properly, according to the --opt=arg convention. The option
319     processing is restructured. Most of the commands now take the
320     appropriate cvs command-specific options.
321    
322     The update algorithm performs dupe checking over the map, which could
323     happen during a merge.
324    
325     Some more bugfixing has been done to the move command. It was still not
326     handling right some cases of an unversioned file being clobbered. Also,
327     it wasn't renaming a directory containing just one file.
328    
329     I did some performance investigation for larger file sets, and
330     ended up rewriting the code that computes filesystem restructuring
331     changes and map duplicates.
332 kaz 1.5
333 kaz 1.4 Release 0.2, 2002-01-30:
334    
335 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
336     performs some filesystem tests so it does the right thing when a versioned
337     file is moved over a non-versioned file, or when a file is moved into
338     a directory not known to Meta-CVS. Factored out reading and writing of
339     map files into functions.
340 kaz 1.4
341 kaz 1.2 Release 0.1, 2002-01-28:
342    
343 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
344     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
345     mv command when copying a directory to an existing directory.
346 kaz 1.2
347     Release 0.0, 2002-01-27:
348 kaz 1.1
349 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
350     However, it is already usable in its present state and is being used for
351     version control by its author. If you can program in Common Lisp and would
352     like to help, take a look through the TODO file. Send me patches, ideas,
353     feature requests.

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